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Finding the Fourth Proportional to 480,374.73, 720,665.01 and 143,441.91

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Solution

The fourth proportional to 480,374.73, 720,665.01 and 143,441.91 is: 215,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,374.73 : 720,665.01 = 143,441.91 : x
  2. Step 2: Convert to fraction form
    480,374.73/720,665.01 = 143,441.91/x
  3. Step 3: Cross multiply
    480,374.73x = 720,665.01 × 143,441.91
  4. Step 4: Simplify right side
    480,374.73x = 103,373,565,504.57
  5. Step 5: Solve for x
    x = 103,373,565,504.57/480,374.73
  6. Step 6: Final answer
    x = 215,193.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.